Sheep-shearing machine.



EATENTED APRjzS, 1908,

z sHETS- V'HEM l T. GRACE. SHEEP SHEARING MAGHNE. APPLIGATIONVFILEDsmmao, 1907.

PATENTED APR. 28

I. T.-GRA0E. SHEEP SHEARING MACHINE. APPLICATION FILED SEPT.30,1907.

2 SHEETS-SHEET 2.

. I7 nomas bmw@ .y y

fr f 4 Ain the State of New South 'UNrrn sansfrnnr THOMAS GaAc-n, ornARLINeToN, NEAR sYnNeY, New sournwAtss, AUsfrnALrA, AssrGNoR ,orove-'THIRD To ctms-tss'Atrnnn :mor/'ns Ann ennesima fro ALGERNON JAMESMETLAIJE, OF SYDNEY,LNEW SOUTH WALES,

AUSTRALIA.

sr-mEP-snEAarNe 'MAcHrns Specification of Letters Restent.

Patented April 28, l-l

Application illed September 39, 190'?. SeriallNc. 395,123?"` To all whomit 'may concern:

Be it known that l, THOMAS GRACE, a sub-- ject of the King of GreatBritain, residing at No. 20 Ivy street, Darlington, near Sydney, y Walesand Gone monwealth of Australia, inventor, have invented new and usefulimprovements in Sheep-Shearing Machines, of 'Jvhich the fol lowing is aspecification.

' This invention relates to certain improvements in sheep shearingmachines.

Heretofore the tension orn the cutter upon the comb of sheep shearingmachines has been a plied by means of a screw (with milled earl)protruding through and above the head or iront top casing of suchmachines audit has been found th at such screw 'with its head is anobstruction to theI progress of vthe machine through the lleece-and atthe same time disturbs and tears the wool to its depreciation. And thisinvention has been spe ciall r devised in order that uneven and easilyregu ated tension of the cutter upon the comb of such machines may beapplied without the necessity of this obstructing and dangerous device.And it has been further devised in'order to produce such a machineshears eilective in operation while at the saine time its various partsare each simple inconstruction and cheap in cost and further may bequickly and easily interchanged for others of the same pattern. But inorder that this invention may be clearly understood reference Will 'nowbe made to the drawing herewith in which Figure l'is a plan ot' a sheepshearing machine constructed according to these present improvements.FigsQ is a central sectional elevation 'of the samef Fig'. 3 apartialplan with co'rnb and plate removed. Fig; 4 a plan on the line 4-4 of thetension devices and Fig. a erspective view of the tension- Wedge Whi eFigs. 6 7 and 8 are transverse sectional elevations on lines 6-6 7 7"and 8-8 respectively across the other figures.

Unlike other similar machines the casing of the drivinf mechanism ofthis sheep shearing machine as no cover opposite to its op erating facebut it has a removable plate or base 9 toiwhieh is secured by screuhs l0the comb 11 which is of ordinary construction. The cutter 12` ofordinary construction reciprocates upon this comb and is tensioned to.also a central concave seating l?. so t its Work and actuated' in themanner hereinafter (ilescribed. l. y y

The plate or .beset3 the whole o actuating mechanisn'i und thereof is ac.\u'ceve seatng or rec over Which springs an srch or bridge i securedscrewsl to said base 9., The bridge 14 hss spherical bearing is yformedfor a 's bulb 18 on the o} erating.leter lill ensblin such lever to rockor have motion require in every direction. f'i his lever i9 has a for 19at its rear end Whichembraces the ball 2 en a stud 2l in the disk 22screwed on to the end 23 on shaft 24 and at its forward end has threelingers 25 with pintles 26 taking into cutter l2. The bridge 14 has aforward projection 27 to Whichis knuckle-jointed at 28 the tension liep2Q on the operating 'face of 4which' is ball 30 between it and theoperating fork 19 vcarrying the cutter AY wed c )ieee 3l takes betweensaid .tien

Z9 and. the end et the casing i6 and in the back end 33 oi said Wedge33, is the recess 3% in Which rides the screw by .means of which thepressure oi the cutter 12 on the comb ll or the tension" of'thermecliine regulated. rlhis screw 35 has a milled head 36 inte one orother of theilutes ot' which the spring 37 engages 'to secure said screwfreni moving after regulation. The forward bearing of the shait24 isathinible 235 having race erw-av E39 for the antifrictionballs 40 whichthimbA s held in lace by the screw 4l. The handle 42 may c of pipingsweated into the end. pieces or it may Yterm part of the The back endel' the handle and the shaft as well as the universal coupling are oiany or diunry well known construction. l

' In the late or buse 9 is an oriiice 43' through vriiich lubricant maybe su pplied to the v vorking parte. At the back end lubricant -issupplied througlnoriliees or waysu 4 and by {iues 45 to both ein ls ofthe back bear ing. rThe shaft' 2d bciuvv" revolved the machi-ne isoperated its orcinnrily the lever' 1) being reci roest-ed and operatingthe cutter 12.. The ever i9 being tree on its spherical bulb-S thetension regulated by reu' 3%.-3 is evenlyv distrilnited by means oiwedge lap about centrally' 29 and ball 30 at all parts of the stroke werthe cutter l2 on the comb il and iusu goed' clean out.' All partesrehandily i comb, a cutter thereon, an operating lever tlon, and meansfor adjusting the vet-at-able by removing theconib 11,(after I casing,and a screw assing through the casscrews 10) and then removing the ingand engaging t e wedge to adjust the 2:, base 9b taking out screws 46and 47 when l position of the same, substantially as dethe Who e of. theparts exceptthe crank stud scribed. 21 and its ball 20 the disk 22 andthe tension 3. A sheep shearing machine, comprising a screw 35 may leavethe casing 16 and hancasing, a removable Abase plate therefor, a dle 42.comb on said base plate, a cutter, an operat` 30 Having now particularlydescribed and asing lever for said cutter, a spherical bul-b once'rtaihed the nature of my said invention said operating lever, abridge holding vthe and in 'what manner the same is to be persphericalbulb on the base plate, a hinged flap formed I declare that what I claimis z` secured to said bridge, a ball between said.

1. A sheep shearing machine comprising a flap and lever, a wedge betweensaid fia casing, and a screw .passing through said) cas ing and engagingwith the flap, substantially as described.

In testimony whereof I have signed my' naine to this specification inthe presence ol 40 twousubscribing witnesses.

THOMAS GRACE.

oosening for the cutter, a hinged portion, a ball between said hingedportion and lever, a casing, a'wedge between said casing and hingedporosition of the Wedge, substantially as descri ed.

2. A sheep shearing machine, comprising a l casing, a comb removablyheld therein, a cutter on said comb, an operating lever for the cutter,a hinged flap, a ball between said flap and lever, a Wedge between theflap and j f Witnesses: y FRED WALSH,

JOHN HUGHES.

and 35

